December in Arba Minch is the sunniest month of the year. In December, the weather in Arba Minch is typically warm. Average daily high temperature in December is about 24 degrees above zero. On average, Arba Minch has 19 partly cloudy, 11 sunny, and 1 cloudy day in December. December as well as January is considered the most comfortable time to visit Arba Minch.